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Internet of Things with Python by Gastón C. Hillar

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  1. PWM stands for:
    1. Pin Work Mode.
    2. Pulse Weight Modulation.
    3. Pulse Width Modulation.
  2. In the Intel Galileo Gen 2 board, the pins labeled with the following symbol as a prefix for the number can be used as PWM output pins:
    1. Hash sign (#).
    2. Dollar sign ($).
    3. Tilde symbol (~).
  3. A 100% duty cycle (always signal in the ON status) in a PWM pin will generate a steady voltage equal to:
    1. 0 V.
    2. The voltage specified in the position in which the IOREF jumper is located.
    3. 6 V.
  4. A 0% duty cycle (always signal in the OFF status) in a PWM pin will generate a steady voltage equal to:
    1. 0 V.
    2. The voltage specified in the position in which the IOREF jumper is located.
    3. 6 V.
  5. A 50% duty cycle in a PWM pin with a LED connected to it will generate the same result as a steady voltage ...

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